1612490687 has 2 divisors, whose sum is σ = 1612490688. Its totient is φ = 1612490686.

The previous prime is 1612490657. The next prime is 1612490729. The reversal of 1612490687 is 7860942161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1612490687 - 2⁶ = 1612490623 is a prime.

It is a super-3 number, since 3×1612490687³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1612490657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806245343 + 806245344.

It is an arithmetic number, because the mean of its divisors is an integer number (806245344).

Almost surely, 2^1612490687 is an apocalyptic number.

1612490687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612490687 is an equidigital number, since it uses as much as digits as its factorization.

1612490687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1612490687 is about 40155.8300499442. The cubic root of 1612490687 is about 1172.6427918954.

The spelling of 1612490687 in words is "one billion, six hundred twelve million, four hundred ninety thousand, six hundred eighty-seven".